get_image_info
Extract image metadata and technical details from files or data inputs to analyze format, dimensions, and properties for informed processing decisions.
Instructions
获取图片文件信息
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| image_path | No | 图片文件路径（与image_data二选一） | |
| image_data | No | 图片数据（Buffer或base64字符串，与image_path二选一） |
Implementation Reference
- src/index.ts:173-189 (registration)Registration of the 'get_image_info' tool in the ListTools handler, including its name, description, and input schema.
{ name: 'get_image_info', description: '获取图片文件信息', inputSchema: { type: 'object', properties: { image_path: { type: 'string', description: '图片文件路径（与image_data二选一）' }, image_data: { type: 'string', description: '图片数据（Buffer或base64字符串，与image_path二选一）' } } } }, - src/index.ts:264-276 (handler)MCP handler for 'get_image_info' tool in the CallToolRequestHandler switch statement. It calls converter.getImageInfo and formats the response text.
case 'get_image_info': { const { image_path, image_data } = args as { image_path?: string; image_data?: string }; const info = await this.converter.getImageInfo(image_path, image_data); const source = image_path ? `文件路径：${image_path}` : '上传文件'; return { content: [ { type: 'text', text: `图片信息：\n${source}\n格式：${info.format}\n尺寸：${info.width}x${info.height}\n文件大小：${info.size} bytes\n颜色通道：${info.channels}\n颜色空间：${info.space || '未知'}` } ] }; } - src/converter.ts:48-55 (schema)ImageInfo interface defining the structure of image information returned by getImageInfo.
export interface ImageInfo { format: string; width: number; height: number; channels: number; size: number; space?: string; } - src/converter.ts:295-330 (helper)Core implementation of getImageInfo in ImageConverter class using Sharp to extract metadata from image file or buffer.
async getImageInfo(imagePath?: string, imageData?: Buffer | string): Promise<ImageInfo> { try { let buffer: Buffer; let size: number; if (imageData) { if (typeof imageData === 'string') { const base64Data = imageData.includes(',') ? imageData.split(',')[1] : imageData; buffer = Buffer.from(base64Data, 'base64'); } else { buffer = imageData; } size = buffer.length; } else if (imagePath) { await fs.access(imagePath); const stats = await fs.stat(imagePath); buffer = await fs.readFile(imagePath); size = stats.size; } else { throw new Error('必须提供imagePath或imageData参数'); } const metadata = await sharp(buffer).metadata(); return { format: metadata.format || 'unknown', width: metadata.width || 0, height: metadata.height || 0, channels: metadata.channels || 0, size: size, space: metadata.space }; } catch (error) { throw new Error(`无法获取图片信息: ${error instanceof Error ? error.message : String(error)}`); } }